Fourth to eugene j



J. S. MUNGB R Gutter for em oving Well-O asi'ngs.

' Patented Feb. 10, 1880'.

, lNVEN TOR GwTNESSES n. PETERS. PHoro-umosunl'zn. WA

15 2 is a detail view thereof.

I UNITEDPSTATES PATENT OFFIC JEROME s. M NeEaoE EDEEBUEG, (KNOX an. PEN SY VANI ssieuon E ONE-HALF OF HIS RIGHT mo wiLLIA-MLM. KIRKPATRICK AND ONE- FOURTH TO EUGENEJ; LITTLE, OF SAME PLACE.-

CUTTER F0 RREMOVI Ne WELL-CASINGS.

SPECIFICATION forming part of Letters Patent No.' 224,465, dated February 10, 1880.

' Application filed June 14, 1879. i

To all whom it mag concern:

Be it known that I, JEROME S. MUNGER, of Edenburg, (Knox P. O.,) in the countyof Clarion and State of Pennsylvania, have invented anew and valuable Improvement in Gutters for Removing Well-Casings; and I do hereby declare that the following is a full, clear, and exact. description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to theletters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a sectional elevation of my cutter. Fig.

Fig. 3 is a crosssection, and Fig. 4c is a bottom view of the same. I

This invention has relation, to improvements in cutters for removing well tubesor 2o casing by producing La out or slot in each side of the tube or casipgg ahdit consists of a cylinder or tube armed with rotary cuttersfhung upon axes secured in movable blocks in the cylinder, with their opposite ends acted on by a conical plunger'which. is subjected to the jarring action of a'tubular hammeror driver,

substantially as hereinafter more fully set forth. Y

In the accompanying drawings, refers to a cylinder or tube with its lower eud'plugged up, as at a, and provided thereat With a number of radial springs, a a, whose free ends are designed'to press or bear against the inside of the well-casing. By this arrangement it will 3 5 be noticed that as the free'ends of the springs spring past the joint of each section of the casing, or from the casing to the wall of the well, which will be attended with'more or less sound or concussion, the completion of the 7 o cutting of each length or section of the well-Q casing will be thus indicated, as will be also the passing of the cylinder, with its cutters, from the casing to the walls of the well when the springs have reached the lower end of the 5 casing. The upper endiof this cylinder is provided with an inner screw-thread,to permit the attachment thereto of suitable means for imparting a vertically-vibratin g motion to the cylinder'in the casing necessary to cause its cutters to cut or'slot the casing.

B B are the cutters, which consist of rotary knife-edged disks arranged, two in number, on eachside of the cylinderaA, and are hung in movable blocksO 0 upon axes b b secured in the latter, which blocks are disposed in lateral openings 0 c in the cylinder, communicating with the vertical passage thereof, which receives the tapering or conical plunger D. The plunger D wedges itself in between the inner or concaved opposite ends of the blocks 0 C, carrying the cutters B. The action of the plunger D on the blocks as it is forced down- Wa'rdlyby the'hammer or driver is to eflect l the lateral movement of said block with its cutters and cause the latter to cut a piece out of each side, and in the direction of the length of the well-casing, bywhich the casing may becollapsed and removed by suitable means( Simultaneously with this movement the'cutters also partake of the vertical movement of the cylinder A, to cause them to effect both a vertical and lateral out in thecasing. The plunger Dis provided at d with an annular head orenlargement upward, from which point it is provided with a guide-rod, 0, having a head, 6. p

E is the hammer or driver, tubular in form,

A and fitting upon the guide-rod e of the plunger D, with its lower end provided with an in- V vvardliy,-projectin g annular'flange, f, to prevent its detachment from. theplunger, the said flange intercepting the head cf on the guiderod 0 of the plunger when the hammerhas been lifted. Theupper end of the hammer or driverlE is adapted (by having preferably a hole through it) to permit the attachment thereto-of a rope or cord for lifting and letting it fall on the plunger, its lower end striking the head or enlargement d of the, plunger. This action of the hammer or driver drives the conical or tapering plunger D in between the cutter-carrying blocks, and, as above intito it in any suitable manner a rope, cord, or chain, by which it may be withdrawn when desired.

What 1 claim as new and desire to secure by Letters Patent, is-

1. In combination with the cylinder A, carrying the cutters B, the conical plunger D and its hammer E, the whole arranged to op-. crate as shown and described.

2. In combination with the plunger D, provided with the flange d, adapted to rest upon a shoulder in the cylinder A, hammer E, fitting over the headed stem 6, and confined thereon by a flange, f, substantially as specifled. I 5

3. In a well-casing cutter, the cylinder A, provided at its lower end with the radial springs a a, substantially as and for the purpose specified.

In testimony that I claim the above I have 20 hereunto subscribed my name in the presence of two witnesses.

JEROME S. MUNGER. Witnesses:

J NO. K. WILsoN, D. R. GOsNELL. 

